html,
body {
  height: 100%;
}
ul,
ol,
li {
  list-style: none;
  margin: 0;
  padding: 0;
}
.black {
  color: #000;
}
.fz-18 {
  font-size: 18px;
}
.lt-container {
  background-color: #fff;
  position: relative;
  max-width: 640px;
  min-width: 320px;
  width: 100%;
  height: 100%;
  margin: 0 auto;
  padding: 45px 0 50px 0;
}
.lt-container .lt-header {
  width: 100%;
  height: 45px;
  background-color: red;
  padding: 0 45px;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 3;
}
.lt-container .lt-header a {
  position: absolute;
  left: 0;
  top: 0;
  width: 45px;
  height: 45px;
  background-color: red;
  text-align: center;
  line-height: 45px;
  font-size: 24px;
  color: #fff;
}
.lt-container .lt-header .search {
  left: auto;
  right: 0;
}
.lt-container .lt-header h4 {
  text-align: center;
  line-height: 45px;
  color: #fff;
  font-weight: normal;
  margin: 0;
  font-size: 24px;
}
.lt-container .lt-main {
  width: 100%;
  height: 100%;
  z-index: 1;
  position: relative;
}
.lt-container .lt-main .lt-login-ball {
  position: fixed;
  top: 100px;
  right: 0;
  z-index: 999;
  text-align: center;
  padding-top: 1px;
  background-color: rgba(255, 0, 0, 0.356);
  border-radius: 25px;
  border: 1px solid rgba(255, 0, 0, 0.513);
  width: 50px;
  height: 50px;
  animation: jump 1s linear infinite alternate;
}
.lt-container .lt-main .lt-login-ball a {
  display: block;
  color: red;
  width: 100%;
  height: 100%;
}
.lt-container .lt-main .lt-login-ball a p {
  color: red;
}
@keyframes jump {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(20px);
  }
}
.lt-container .lt-footer {
  width: 100%;
  height: 50px;
  position: absolute;
  left: 0;
  bottom: 0;
  background-color: red;
  z-index: 2;
}
.lt-container .lt-footer .lt-nav li {
  float: left;
  width: 25%;
  height: 50px;
  text-align: center;
  line-height: 20px;
}
.lt-container .lt-footer .lt-nav li a {
  color: #fff;
  display: block;
  width: 100%;
  height: 100%;
  padding: 5px;
  padding-bottom: 0;
}
.lt-container .lt-footer .lt-nav li a p {
  color: #fff;
  margin: 0;
}
.lt-container .lt-footer .lt-nav li.current > a,
.lt-container .lt-footer .lt-nav li.current > a > p {
  color: red;
  background-color: #fff;
}
